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javascript/snippets/binary.md

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+---
+title: Binary function arity
+type: snippet
+tags: [function]
+author: chalarangelo
+cover: blue-bird
+dateModified: 2020-10-18T23:04:45+03:00
+---
+
+Creates a function that accepts up to two arguments, ignoring any additional arguments.
+
+- Call the provided function, `fn`, with the first two arguments given.
+
+```js
+const binary = fn => (a, b) => fn(a, b);
+```
+
+```js
+['2', '1', '0'].map(binary(Math.max)); // [2, 1, 2]
+```